How to validate a credit card number

type: Mastercard
number: 5570 2966 2454 0830
cvv: 217
exp: 10/20

Credit Card Generator

A valid credit card number has several fields and each of them has a meaning. For the technically inclined, this number complies to the ISO 7812 numbering standard. An contains a six-digit issuer identification number (IIN), an individual account identification number, and a single digit checksum.

The credit card numbers you generate on this page are completely random. When we say they are valid, we merely imply that they are a possible combination of characters which will validate when passed through the MOD 10 algorithm. You can also generate valid credit card numbers for specific Issuing Networks by utilising their particular prefixes. However, we do not provide you (obviously) with the correspondent verification code for these cards, as they are completely fake and made up randomly.

If you've ever found yourself trying to try a product online which required a credit card, even when you just want to take a look, you know why we made this. We believe there's no need to share such information with providers without the actual intent to buy stuff. Anyone can make a website with a form and require you to insert valuable and sensitive information which requires you to give up your privacy. This is a way to protect yourself in such situations.

The other reason we made this are programmers testing ecommerce websites, applications or other software. They usually need lots of fake data, and this is a very easy way to generate a bunch of valid credit card numbers in a split second. There's another tool for those times when you need to generate all other kinds of data.

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Check Credit Card Numbers. Validate your credit card number...
Check Credit Card Numbers. Validate your credit card number...

Click to Validate. Example credit card numbers need more test data?The credit card number you entered failed the Luhn Check. It's not valid, did you make a typo? Major Industry Identifier. The first digit of a credit card number represent the category of entity which issued the card. Issuer identification number.
Jacques Eloff - ASP.NET MVC 2 RC – Validating Credit Card Numbers
Jacques Eloff - ASP.NET MVC 2 RC – Validating Credit Card Numbers

Having spent some time in the electronic funds transfer (EFT) industry before joining Microsoft, I thought it might be fun combining my experience from both worlds by showing how to validate a credit card number using the validation support provided by MVC 2 RC. Anatomy of a PAN. The number printed on your credit card is called a primary account number (PAN) and is based on the ISO/IEC 7812 standard. Let’s start by looking at a contrived PAN. The first six digits of the PAN are called the bank identification number (BIN) or issuer identification number (IIN).
How To Manually Validate a Credit Card Number
How To Manually Validate a Credit Card Number

Learn how to validate a credit card number manually using simple math.1. First note down the credit card number on a piece of paper. 2. Starting with the second digit from right, double every alternate digit and note it down under the original number. Cross the remaining digits. 3. While doubling the alternate digits in Step 2 above, If you got any number with two digits, then add those two digits together to make it a single digit.